R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 12-20-2004, 05:29 PM   #16
Tech Fanatic
 
hogdaddy77's Avatar
 
Join Date: Nov 2003
Location: Warner Robins, Ga
Posts: 846
Trader Rating: 1 (100%+)
Default

I saw a post saying to soak a belt in wd40..simply put the belt in a ziplock bag, spray a generous amount of wd40 in it, seal it up nd liet it soak for about two weeks...then take it out, wipe it down and away you go...but two weeks seems like an awful long time
hogdaddy77 is offline   Reply With Quote
Old 12-20-2004, 09:13 PM   #17
Tech Master
 
J.Filipow's Avatar
 
Join Date: Mar 2003
Location: Los Angeles, CA
Posts: 1,692
Trader Rating: 15 (100%+)
Default

Aside from the belt mods (removing teeth, making narrower, etc), dont' forget that simply making sure that every moving component/bearing along that drive line is clean, free spinning and well lubricated is just as important.
__________________
P1 Brand - "Victory is Black and White" ◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤

RC America / XRayUSA / Hudy / Motiv / Avid / Vannen Watches
J.Filipow is offline   Reply With Quote
Old 12-20-2004, 09:25 PM   #18
Tech Champion
 
AdrianM's Avatar
 
Join Date: Aug 2001
Location: Tampa, FL
Posts: 5,914
Trader Rating: 4 (100%+)
Default

The current crop of belt cars (Mi2, Xray, 415, etc) are so free out of the box its sick...unless you put something together wrong...lol!

There is no need to clip teeth off of belts. If you were to run back to back tests on the clock I seriously doubt anyone would see a difference. A better line in one corner or a set of new brushes will make a bigger difference to lap times.
__________________
Adrian Martinez
What I run: Schumacher Mi5/Associated RC10R5.1/Associated RC12R5.2/Futaba/HobbyWing/Team EA Motorsports/BSR Racing
Where I run: Florida Indoor R/C Complex/Thunder Racing/Florida On Road State Series
AdrianM is offline   Reply With Quote
Old 12-20-2004, 09:44 PM   #19
Tech Fanatic
 
hogdaddy77's Avatar
 
Join Date: Nov 2003
Location: Warner Robins, Ga
Posts: 846
Trader Rating: 1 (100%+)
Default

The Mi2 i just got and built is free like a motha...and I have a little tension on the belt from the tighteners.....cant wait to feel it after a few runs and a bearing cleaning...my TC3 is fairly free, but the mi2 is crazy free right outta the box
hogdaddy77 is offline   Reply With Quote
Old 12-20-2004, 10:15 PM   #20
Tech Master
 
bender's Avatar
 
Join Date: May 2004
Location: Brisbane
Posts: 1,504
Trader Rating: 4 (100%+)
Default

Quote:
Originally posted by AdrianM
The current crop of belt cars (Mi2, Xray, 415, etc) are so free out of the box its sick...unless you put something together wrong...lol!

There is no need to clip teeth off of belts. If you were to run back to back tests on the clock I seriously doubt anyone would see a difference. A better line in one corner or a set of new brushes will make a bigger difference to lap times.

Finally some sense on this thread

The trimming of teeth off the belt was only done for the XXXS because it uses a faily large tooth size and there is a lot of "belt-wrap" in the drivetrain. (belt-wrap is how many teeth are in contact with the pulleys at any given time) - it was found that you could cut a few teeth on the belt and still have enough left without excessive slipping. You would certainly NOT do it for any belt drive cars with smaller tooth belts! You also don't need to narrow the belts on most modern tourers as most are only about 5mm wide anyway.

The best way to maximise the efficiency of a belt drive car is to make sure the diffs run smoothly in the bulkhead/tranny case etc - that's basically all you need to do.

If you want to soak the belt in something - DON'T soak it in an oil based product that will attract dirt - You don't want to use a standard style lubricant here - you want to use something that makes the surface of the pulley and belt slippery and something that will keep the belt cooler - so try soaking them in silicone spray - it works magic on all the cars I've used it on.

But unless you are racing on a very clean surface (or have a sealed belt drive) then I wouldn't recommend it.
__________________
Jason W
FIR#2 - "You can't buy this much talent"
Durango Dex410 - Schumacher Cougar SV - Top Photon
bender is offline   Reply With Quote
Old 12-21-2004, 07:56 AM   #21
Tech Fanatic
 
kidDynomite's Avatar
 
Join Date: Jul 2004
Location: Chicago
Posts: 928
Default

Good points guys. The Xray FK comes super free. Josh Cyrul and some guys at my track cut every other tooth on the pulleys. It's easy on the Xray since the pulley's side covers come off. For mod, Josh suggests not to do it to the rear diff pulley.
kidDynomite is offline   Reply With Quote
Old 12-21-2004, 12:08 PM   #22
Tech Adept
 
tuil21's Avatar
 
Join Date: Sep 2004
Posts: 200
Default

what what bearing lube you guys use that dosent attract dirt?
tuil21 is offline   Reply With Quote
Old 12-21-2004, 12:25 PM   #23
Tech Regular
 
Join Date: Feb 2003
Location: illinois
Posts: 487
Trader Rating: 6 (100%+)
Send a message via AIM to Justin Zorc
Default

fuel injector cleaner
Justin Zorc is offline   Reply With Quote
Old 12-21-2004, 02:27 PM   #24
Tech Initiate
 
Join Date: Dec 2004
Posts: 24
Default

thanks for all the tips guys. i will try them all!!
soto is offline   Reply With Quote
Old 12-23-2004, 03:44 PM   #25
Tech Apprentice
 
jlrogers's Avatar
 
Join Date: Jun 2004
Location: Lexington, KY
Posts: 88
Default

I have a xray evo 2.5 that is super free. i soaked the bearings in lighter fluid for a couple of days to clean out all of the old grease, clean them with motor spray, and use the sin lube from acer. I would take the advice of the posts that concentrate on the diffs and bearings and leave the belts alone.
jlrogers is offline   Reply With Quote
Old 12-23-2004, 03:55 PM   #26
Tech Champion
 
AdrianM's Avatar
 
Join Date: Aug 2001
Location: Tampa, FL
Posts: 5,914
Trader Rating: 4 (100%+)
Default

The lighter the bearing lube the better. I also use as little oil as possible. I use needle type applicators and put less than one drop of oil per clean, oil free bearing. If you fill up a bearing it will have hydraulic drag from the bearings pushing through all the oil. That and the oil will slink all over the place and attract dirt.
__________________
Adrian Martinez
What I run: Schumacher Mi5/Associated RC10R5.1/Associated RC12R5.2/Futaba/HobbyWing/Team EA Motorsports/BSR Racing
Where I run: Florida Indoor R/C Complex/Thunder Racing/Florida On Road State Series
AdrianM is offline   Reply With Quote
Old 12-23-2004, 04:23 PM   #27
Tech Champion
 
Jon Kerr's Avatar
 
Join Date: Jul 2002
Location: San Diego
Posts: 9,658
Trader Rating: 17 (100%+)
Default

I worked for hours on my drive train when I drove a Losi, doing all the tricks I could find. My Mi2 was more free built stock than the XXXS ever was. Besides, there is also such thing as too free.
Jon Kerr is offline   Reply With Quote
Old 12-24-2004, 12:35 PM   #28
Tech Initiate
 
Join Date: Dec 2004
Posts: 24
Default

i sanded down my xray belts until i could just see the fibres and it made a huge difference to how fast the car was. the car was more punchy and reached its top end quicker. i also wetted the belt fibres with thinner whilst it was still in the car.


what do you mean too free?
soto is offline   Reply With Quote
Old 12-24-2004, 01:06 PM   #29
Tech Champion
 
Jon Kerr's Avatar
 
Join Date: Jul 2002
Location: San Diego
Posts: 9,658
Trader Rating: 17 (100%+)
Default

Sloppy. Someone posted a little while back about getting better lap times with tighter belts. If your belts are too loose you can loose some snap.

I think Mr. Filipow out it perfectly, making sire the bearing are clean and all the rotating parts are aligned right and clean and free is more important than anything.
Jon Kerr is offline   Reply With Quote
Old 12-24-2004, 01:26 PM   #30
Tech Initiate
 
Join Date: Dec 2004
Posts: 24
Default

you might get a more snappy response but loose belts give a higher top speed than not so loose belts and also make the car more efficient. it also depens on the track you are on.

i loosened the belts because my car was slower down the straight and i knew this would help. i think tighter would be better for indoor though.
soto is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
shaft drive vs. belt drive plz help pH1L Rookie Zone 1 06-07-2007 05:32 AM
Belt Drive versus Shaft Drive SUNA Nitro On-Road 20 03-28-2006 09:04 PM
Belt drive versus shaft drive...pros and cons of each? AttackDonut Rookie Zone 21 01-02-2005 05:23 PM
Belt drive or Shaft Drive tc3wood Electric On-Road 4 12-03-2004 07:57 AM
Shaft Drive or Belt Drive? dino.tw Nitro On-Road 109 05-25-2004 11:04 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 04:19 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net